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25
4
我正在开发一个应用程序，用户可以在该应用程序中在 TextView 中键入内容，然后单击一个按钮。此按钮启动一个线程，该线程将文本强加到资源文件中的位图上，然后将此新位图保存到 SD 卡并启动一个允许用户发送/通过电子邮件发送此图像的 Intent 。我已经编写了这段代码，它可以在我的 galaxy vibrant 上运行，但不能在 android 模拟器上运行。此应用程序使用 8 级 API，旨在在 2.2 平台上运行。我试过运行它自己的线程，也没有运气作为异步任务。我还阅读了许多 stackoverflow 问题，并遵循了他们关于创建位图而不会溢出模拟器堆大小的建议。我已经尝试将我的变量实例化为字段，也在方法本身内实例化。这是我的代码:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i("INFO","At 2###########");
setContentView(R.layout.blank);
Thread thread = new Thread(this);
thread.start();
}
public void run() {
BitmapFactory.Options factoryOptions = new BitmapFactory.Options();
factoryOptions.inPurgeable = true;
factoryOptions.inInputShareable = true;
Bitmap tempCBitmap = BitmapFactory.decodeResource(getResources(),R.drawable.c6,factoryOptions);
cBitmap = tempCBitmap.copy(Bitmap.Config.ARGB_8888, true);
PrepareLines();
Bitmap dBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.dummy);
Bitmap textLayer = Bitmap.createScaledBitmap(dBitmap, w, h, false);
Bitmap workLayer = Bitmap.createScaledBitmap(dBitmap, w, h, false);
canvas = new Canvas(textLayer);
canvas.drawText(lineOne, xCenter, yCenter, paint);
canvas.drawText(lineTwo, xCenter, yCenter+20, paint);
canvas.drawText(lineThree, xCenter, yCenter+40, paint);
Camera mCamera = new Camera();
Matrix mMatrix = new Matrix();
mCamera.save();
mCamera.rotateY(yDegreeRotate+8);
mCamera.getMatrix(mMatrix);
mCamera.restore();
mMatrix.preTranslate(-xCenter, (-yCenter)-verticalOffset);
mMatrix.postTranslate(xCenter, yCenter+verticalOffset);
Log.i("INFO","At before first draw ###########");
canvas.setBitmap(workLayer);
canvas.drawBitmap(Bitmap.createBitmap(textLayer,0,0,xCenter,h), mMatrix, paint);
canvas.setBitmap(cBitmap);
canvas.drawBitmap(workLayer, new Matrix(), paint);
mMatrix = new Matrix();
workLayer = Bitmap.createScaledBitmap(dBitmap, w, h, false);
dBitmap = null;
System.gc();
mCamera.rotateY(-yDegreeRotate);
mCamera.getMatrix(mMatrix);
// WIN DEATH HERE
mCamera.restore();
// WIN DEATH HERE;
mMatrix.preTranslate(0 , (-yCenter)-verticalOffset);
mMatrix.postTranslate(xCenter, (yCenter)+verticalOffset);
Log.i("INFO","At before second draw ###########");
canvas.setBitmap(workLayer);
canvas.drawBitmap(Bitmap.createBitmap(textLayer,xCenter,0,w-xCenter,h), mMatrix, paint);
canvas.setBitmap(cBitmap);
canvas.drawBitmap(workLayer, new Matrix(), paint);
Log.i("INFO","At 20, string measures: "+paint.measureText(message));
canvas = null;
workLayer = null;
textLayer = null;
System.gc();
makeFileAndIntent();
}
这是我最近的 logcat 输出
01-14 18:00:43.453: D/AndroidRuntime(388): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
01-14 18:00:43.453: D/AndroidRuntime(388): CheckJNI is ON
01-14 18:00:43.543: D/AndroidRuntime(388): --- registering native functions ---
01-14 18:00:44.063: D/dalvikvm(255): GC_EXPLICIT freed 507 objects / 28896 bytes in 126ms
01-14 18:00:44.173: D/PackageParser(59): Scanning package: /data/app/vmdl47264.tmp
01-14 18:00:44.173: W/PackageParser(59): No actions in intent filter at /data/app/vmdl47264.tmp Binary XML file line #30
01-14 18:00:44.443: I/PackageManager(59): Removing non-system package:com.gigabites.fortune
01-14 18:00:44.443: I/ActivityManager(59): Force stopping package com.gigabites.fortune uid=10040
01-14 18:00:44.543: D/PackageManager(59): Scanning package com.gigabites.fortune
01-14 18:00:44.543: I/PackageManager(59): Package com.gigabites.fortune codePath changed from /data/app/com.gigabites.fortune-2.apk to /data/app/com.gigabites.fortune-1.apk; Retaining data and using new
01-14 18:00:44.543: I/PackageManager(59): /data/app/com.gigabites.fortune-1.apk changed; unpacking
01-14 18:00:44.553: D/installd(35): DexInv: --- BEGIN '/data/app/com.gigabites.fortune-1.apk' ---
01-14 18:00:44.803: D/dalvikvm(395): DexOpt: load 37ms, verify 132ms, opt 3ms
01-14 18:00:44.813: D/installd(35): DexInv: --- END '/data/app/com.gigabites.fortune-1.apk' (success) ---
01-14 18:00:44.813: W/PackageManager(59): Code path for pkg : com.gigabites.fortune changing from /data/app/com.gigabites.fortune-2.apk to /data/app/com.gigabites.fortune-1.apk
01-14 18:00:44.823: W/PackageManager(59): Resource path for pkg : com.gigabites.fortune changing from /data/app/com.gigabites.fortune-2.apk to /data/app/com.gigabites.fortune-1.apk
01-14 18:00:44.823: D/PackageManager(59): Activities: com.gigabites.fortune.FortuneCookieActivity com.gigabites.fortune.NewCookieActivity com.gigabites.fortune.BrowseStockActivity com.gigabites.fortune.BrowseSavedActivity com.gigabites.fortune.SendCookieActivity com.gigabites.fortune.BuildActivity
01-14 18:00:44.833: I/ActivityManager(59): Force stopping package com.gigabites.fortune uid=10040
01-14 18:00:44.913: I/installd(35): move /data/dalvik-cache/data@app@com.gigabites.fortune-1.apk@classes.dex -> /data/dalvik-cache/data@app@com.gigabites.fortune-1.apk@classes.dex
01-14 18:00:44.913: D/PackageManager(59): New package installed in /data/app/com.gigabites.fortune-1.apk
01-14 18:00:45.013: I/ActivityManager(59): Force stopping package com.gigabites.fortune uid=10040
01-14 18:00:45.213: D/dalvikvm(59): GC_EXPLICIT freed 8993 objects / 895112 bytes in 187ms
01-14 18:00:45.253: D/dalvikvm(116): GC_EXPLICIT freed 1237 objects / 68112 bytes in 69ms
01-14 18:00:45.383: W/RecognitionManagerService(59): no available voice recognition services found
01-14 18:00:45.503: D/dalvikvm(143): GC_EXPLICIT freed 2329 objects / 127024 bytes in 241ms
01-14 18:00:45.604: D/dalvikvm(59): GC_EXPLICIT freed 5971 objects / 316560 bytes in 76ms
01-14 18:00:45.613: I/installd(35): unlink /data/dalvik-cache/data@app@com.gigabites.fortune-2.apk@classes.dex
01-14 18:00:45.613: D/AndroidRuntime(388): Shutting down VM
01-14 18:00:45.623: D/dalvikvm(388): Debugger has detached; object registry had 1 entries
01-14 18:00:46.043: D/AndroidRuntime(401): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<
01-14 18:00:46.043: D/AndroidRuntime(401): CheckJNI is ON
01-14 18:00:46.133: D/AndroidRuntime(401): --- registering native functions ---
01-14 18:00:46.543: I/ActivityManager(59): Force stopping package com.gigabites.fortune uid=10040
01-14 18:00:46.543: I/ActivityManager(59): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.gigabites.fortune/.BuildActivity }
01-14 18:00:46.563: I/ActivityManager(59): Start proc com.gigabites.fortune for activity com.gigabites.fortune/.BuildActivity: pid=407 uid=10040 gids={1015}
01-14 18:00:46.574: W/WindowManager(59): HistoryRecord{450598a8 com.gigabites.fortune/.BuildActivity} failed creating starting window
01-14 18:00:46.574: W/WindowManager(59): android.view.InflateException: Binary XML file line #24: Error inflating class <unknown>
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.createView(LayoutInflater.java:513)
01-14 18:00:46.574: W/WindowManager(59): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
01-14 18:00:46.574: W/WindowManager(59): at com.android.internal.policy.impl.PhoneWindow.generateLayout(PhoneWindow.java:2165)
01-14 18:00:46.574: W/WindowManager(59): at com.android.internal.policy.impl.PhoneWindow.installDecor(PhoneWindow.java:2220)
01-14 18:00:46.574: W/WindowManager(59): at com.android.internal.policy.impl.PhoneWindow.getDecorView(PhoneWindow.java:1407)
01-14 18:00:46.574: W/WindowManager(59): at com.android.internal.policy.impl.PhoneWindowManager.addStartingWindow(PhoneWindowManager.java:894)
01-14 18:00:46.574: W/WindowManager(59): at com.android.server.WindowManagerService$H.handleMessage(WindowManagerService.java:9007)
01-14 18:00:46.574: W/WindowManager(59): at android.os.Handler.dispatchMessage(Handler.java:99)
01-14 18:00:46.574: W/WindowManager(59): at android.os.Looper.loop(Looper.java:123)
01-14 18:00:46.574: W/WindowManager(59): at com.android.server.WindowManagerService$WMThread.run(WindowManagerService.java:570)
01-14 18:00:46.574: W/WindowManager(59): Caused by: java.lang.reflect.InvocationTargetException
01-14 18:00:46.574: W/WindowManager(59): at android.widget.FrameLayout.<init>(FrameLayout.java:79)
01-14 18:00:46.574: W/WindowManager(59): at java.lang.reflect.Constructor.constructNative(Native Method)
01-14 18:00:46.574: W/WindowManager(59): at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
01-14 18:00:46.574: W/WindowManager(59): at android.view.LayoutInflater.createView(LayoutInflater.java:500)
01-14 18:00:46.574: W/WindowManager(59): ... 13 more
01-14 18:00:46.574: W/WindowManager(59): Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x2/d=0x1010059 a=-1}
01-14 18:00:46.574: W/WindowManager(59): at android.content.res.Resources.loadDrawable(Resources.java:1681)
01-14 18:00:46.574: W/WindowManager(59): at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
01-14 18:00:46.574: W/WindowManager(59): at android.widget.FrameLayout.<init>(FrameLayout.java:91)
01-14 18:00:46.574: W/WindowManager(59): ... 17 more
01-14 18:00:46.574: D/AndroidRuntime(401): Shutting down VM
01-14 18:00:46.583: D/dalvikvm(401): Debugger has detached; object registry had 1 entries
01-14 18:00:46.744: W/ActivityThread(407): Application com.gigabites.fortune is waiting for the debugger on port 8100...
01-14 18:00:46.783: I/System.out(407): Sending WAIT chunk
01-14 18:00:46.783: I/dalvikvm(407): Debugger is active
01-14 18:00:46.983: I/System.out(407): Debugger has connected
01-14 18:00:46.983: I/System.out(407): waiting for debugger to settle...
01-14 18:00:47.183: I/System.out(407): waiting for debugger to settle...
01-14 18:00:47.383: I/System.out(407): waiting for debugger to settle...
01-14 18:00:47.583: I/System.out(407): waiting for debugger to settle...
01-14 18:00:47.783: I/System.out(407): waiting for debugger to settle...
01-14 18:00:47.983: I/System.out(407): waiting for debugger to settle...
01-14 18:00:48.183: I/System.out(407): waiting for debugger to settle...
01-14 18:00:48.393: I/System.out(407): debugger has settled (1335)
01-14 18:00:50.373: I/INFO(407): At 2###########
01-14 18:00:50.433: I/INFO(407): At 1###########
01-14 18:00:50.663: D/dalvikvm(407): GC_EXTERNAL_ALLOC freed 725 objects / 54320 bytes in 39ms
01-14 18:00:51.063: I/ActivityManager(59): Displayed activity com.gigabites.fortune/.BuildActivity: 4505 ms (total 273315 ms)
01-14 18:00:51.103: I/INFO(407): At 2###########
01-14 18:00:51.103: I/INFO(407): At 20, string measures: 653.0
01-14 18:00:51.164: D/dalvikvm(407): GC_EXTERNAL_ALLOC freed 425 objects / 18528 bytes in 34ms
01-14 18:00:51.223: D/dalvikvm(407): GC_EXTERNAL_ALLOC freed 47 objects / 1776 bytes in 31ms
01-14 18:00:51.293: I/INFO(407): At before first draw ###########
01-14 18:00:51.373: D/dalvikvm(407): GC_EXTERNAL_ALLOC freed 15 objects / 680 bytes in 29ms
01-14 18:00:51.433: D/dalvikvm(407): GC_EXPLICIT freed 12 objects / 456 bytes in 30ms
01-14 18:00:51.576: I/DEBUG(31): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
01-14 18:00:51.576: I/DEBUG(31): Build fingerprint: 'generic/google_sdk/generic/:2.2/FRF91/43546:eng/test-keys'
01-14 18:00:51.583: I/DEBUG(31): pid: 407, tid: 414 >>> com.gigabites.fortune <<<
01-14 18:00:51.583: I/DEBUG(31): signal 11 (SIGSEGV), fault addr deadbaad
01-14 18:00:51.583: I/DEBUG(31): r0 00000000 r1 0000000c r2 00000027 r3 00000000
01-14 18:00:51.583: I/DEBUG(31): r4 00000000 r5 deadbaad r6 00001728 r7 00000000
01-14 18:00:51.583: I/DEBUG(31): r8 46d2ed10 r9 4185ff74 10 00233e40 fp 4185ff70
01-14 18:00:51.583: I/DEBUG(31): ip ffffffff sp 46d2ec80 lr afd154c5 pc afd11dc4 cpsr 40000030
01-14 18:00:51.643: I/DEBUG(31): #00 pc 00011dc4 /system/lib/libc.so
01-14 18:00:51.643: I/DEBUG(31): #01 pc 0000be1c /system/lib/libc.so
01-14 18:00:51.643: I/DEBUG(31): code around pc:
01-14 18:00:51.643: I/DEBUG(31): afd11da4 1c2bd00b 2d00682d e026d1fb 2b0068db
01-14 18:00:51.643: I/DEBUG(31): afd11db4 4e17d003 51a02001 4d164798 24002227
01-14 18:00:51.643: I/DEBUG(31): afd11dc4 f7fb702a 2106ee14 ef10f7fc 05592380
01-14 18:00:51.643: I/DEBUG(31): afd11dd4 6091aa01 1c116054 94012006 eab6f7fc
01-14 18:00:51.643: I/DEBUG(31): afd11de4 2200a905 f7fc2002 f7fbeac2 2106ee00
01-14 18:00:51.653: I/DEBUG(31): code around lr:
01-14 18:00:51.653: I/DEBUG(31): afd154a4 b0834a0d 589c447b 26009001 686768a5
01-14 18:00:51.653: I/DEBUG(31): afd154b4 220ce008 2b005eab 1c28d003 47889901
01-14 18:00:51.653: I/DEBUG(31): afd154c4 35544306 d5f43f01 2c006824 b003d1ee
01-14 18:00:51.653: I/DEBUG(31): afd154d4 bdf01c30 0002ae7c 000000d4 1c0fb5f0
01-14 18:00:51.653: I/DEBUG(31): afd154e4 43551c3d a904b087 1c16ac01 604d9004
01-14 18:00:51.653: I/DEBUG(31): stack:
01-14 18:00:51.653: I/DEBUG(31): 46d2ec40 00000015
01-14 18:00:51.653: I/DEBUG(31): 46d2ec44 afd1453b /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec48 afd405a0 /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec4c afd4054c /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec50 00000000
01-14 18:00:51.653: I/DEBUG(31): 46d2ec54 afd154c5 /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec58 00000000
01-14 18:00:51.653: I/DEBUG(31): 46d2ec5c afd1450d /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec60 afd41724 /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec64 afd40328 /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec68 00000000
01-14 18:00:51.653: I/DEBUG(31): 46d2ec6c 00001728
01-14 18:00:51.653: I/DEBUG(31): 46d2ec70 00000000
01-14 18:00:51.653: I/DEBUG(31): 46d2ec74 afd147ab /system/lib/libc.so
01-14 18:00:51.653: I/DEBUG(31): 46d2ec78 df002777
01-14 18:00:51.663: I/DEBUG(31): 46d2ec7c e3a070ad
01-14 18:00:51.663: I/DEBUG(31): #00 46d2ec80 8086caa4 /system/lib/libdvm.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec84 80870eea /system/lib/libdvm.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec88 afd418dc /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec8c afd10510 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec90 afd40328 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec94 fffffbdf
01-14 18:00:51.663: I/DEBUG(31): 46d2ec98 afd40328 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ec9c afd41724 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2eca0 0000a000 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2eca4 afd0be21 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): #01 46d2eca8 afd40328 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ecac afd0be21 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ecb0 418cb358 /dev/ashmem/dalvik-LinearAlloc (deleted)
01-14 18:00:51.663: I/DEBUG(31): 46d2ecb4 80846dad /system/lib/libdvm.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ecb8 0011cda0 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2ecbc 00118b68 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2ecc0 44f461e0 /dev/ashmem/mspace/dalvik-heap/2 (deleted)
01-14 18:00:51.663: I/DEBUG(31): 46d2ecc4 8083d9b9 /system/lib/libdvm.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ecc8 000013fc
01-14 18:00:51.663: I/DEBUG(31): 46d2eccc 00130eb8 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2ecd0 44f461e0 /dev/ashmem/mspace/dalvik-heap/2 (deleted)
01-14 18:00:51.663: I/DEBUG(31): 46d2ecd4 0011cda0 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2ecd8 00240c28 [heap]
01-14 18:00:51.663: I/DEBUG(31): 46d2ecdc 42c3d5f6 /data/dalvik-cache/system@framework@framework.jar@classes.dex
01-14 18:00:51.663: I/DEBUG(31): 46d2ece0 4185ff7c
01-14 18:00:51.663: I/DEBUG(31): 46d2ece4 afd0cd81 /system/lib/libc.so
01-14 18:00:51.663: I/DEBUG(31): 46d2ece8 0011cda0 [heap]
01-14 18:00:51.673: I/DEBUG(31): 46d2ecec afc008e3 /system/lib/libstdc++.so
01-14 18:00:52.053: I/BootReceiver(59): Copying /data/tombstones/tombstone_03 to DropBox (SYSTEM_TOMBSTONE)
01-14 18:00:52.073: D/Zygote(33): Process 407 terminated by signal (11)
01-14 18:00:52.143: D/dalvikvm(59): GC_FOR_MALLOC freed 2390 objects / 360624 bytes in 80ms
01-14 18:00:52.143: I/WindowManager(59): WIN DEATH: Window{450eb158 com.gigabites.fortune/com.gigabites.fortune.BuildActivity paused=false}
01-14 18:00:52.143: I/ActivityManager(59): Process com.gigabites.fortune (pid 407) has died.
01-14 18:00:52.154: I/UsageStats(59): Unexpected resume of com.android.launcher while already resumed in com.gigabites.fortune
01-14 18:00:52.183: W/InputManagerService(59): Got RemoteException sending setActive(false) notification to pid 407 uid 10040
01-14 18:00:57.414: D/dalvikvm(255): GC_EXPLICIT freed 224 objects / 15056 bytes in 118ms
01-14 18:01:05.203: D/dalvikvm(262): GC_EXPLICIT freed 2061 objects / 147680 bytes in 127ms
01-14 18:01:06.103: D/SntpClient(59): request time failed: java.net.SocketException: Address family not supported by protocol
编辑:添加了 logcat 并尝试在 setContentView() 上使用基本的 XML 布局运行以确保它与我的布局无关。
最佳答案
你的模拟器设置正确吗？尝试在 eclipse 中查看您的 avd 编辑器，并确保您已设置 SD 卡。
关于android - 如何将转换后的文本 super 强加到从资源创建的位图上并另存为 JPG？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8860380/
25
4
0
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我是android和kotlin的新手，所以请原谅要解决的一个非常简单的问题! 我已经使用导航体系结构组件创建了一个基本应用程序，使用了底部的导航栏和三个导航选项。每个导航选项都指向一个专用片段，该片
我目前正在使用 Facebook official SDK for Android . 我现在正在使用高级示例应用程序，但我不知道如何让它获取应用程序墙/流/状态而不是登录的用户。 这可能吗？在那种情
我在下载文件时遇到问题， 我可以在模拟器中下载文件，但无法在手机上使用。我已经定义了上网和写入 SD 卡的权限。 我在服务器上有一个 doc 文件，如果用户单击下载。它下载文件。这在模拟器中工作正常但
这个问题在这里已经有了答案: What is the difference between gravity and layout_gravity in Android? (22 个答案) 关闭 9
任何人都可以告诉我什么是 android 缓存和应用程序缓存，因为当我们谈论缓存清理应用程序时，它的作用是，缓存清理概念是清理应用程序缓存还是像内存管理一样主存储、RAM、缓存是不同的并且据我所知，缓
假设应用程序 Foo 和 Eggs 在同一台 Android 设备上。任一应用程序都可以获取设备上所有应用程序的列表。一个应用程序是否有可能知道另一个应用程序是否已经运行以及运行了多长时间？ 最佳答案
我有点困惑，我只看到了从 android 到 pc 或者从 android 到 pc 的例子。我需要制作一个从两部手机 (android) 连接的 android 应用程序进行视频聊天。我在想，我知道
用于使用 Android 以编程方式锁定屏幕。我从 Stackoverflow 之前关于此的问题中得到了一些好主意，并且我做得很好，但是当我运行该代码时，没有异常和错误。而且，屏幕没有锁定。请在这段代
文档说: android:layout_alignParentStart If true, makes the start edge of this view match the start edge
我不知道这两个属性和高度之间的区别。 以一个TextView为例，如果我将它的layout_width设置为wrap_content，并将它的width设置为50 dip，会发生什么情况？ 最佳答案
这两个属性有什么关系？如果我有 android:noHistory="true"，那么有 android:finishOnTaskLaunch="true" 有什么意义吗？ 最佳答案 假设您的应用中有
我是新手，正在尝试理解以下 XML 代码: 查看 developer.android.com 上的文档，它说“starStyle”是 R.attr 中的常量， public static final
在下面的代码中，为什么当我设置时单选按钮的外观会发生变化 android:layout_width="fill_parent" 和 android:width="fill_parent" 我说的是
很难说出这里要问什么。这个问题模棱两可、含糊不清、不完整、过于宽泛或夸夸其谈，无法以目前的形式得到合理的回答。如需帮助澄清此问题以便重新打开，visit the help center . 关闭 9
假设我有一个函数 fun myFunction(name:String, email:String){}，当我调用这个函数时 myFunction('Ali', 'ali@test.com ') 如何
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