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HarmonyOS
我试着在我的加载屏幕上播放加载动画，我在某处读到 android 不支持 gif，所以你要么必须进入帧然后播放它，要么我们可以使用 Movie 类。
这是主要活动 -
package com.myapp.mehul.login.activity;
import android.app.Activity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import com.myapp.mehul.login.MYGIFView;
import com.myapp.mehul.login.MainActivity;
import com.myapp.mehul.login.R;
import com.myapp.mehul.login.app.Constants;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.URISyntaxException;
import io.socket.client.IO;
import io.socket.client.Socket;
import io.socket.emitter.Emitter;
/**
* Created by mehul on 2/6/16.
*/
public class LoadingScreen extends Activity {
/** Duration of wait **/
private final int SPLASH_DISPLAY_LENGTH = 1000;
/** Called when the activity is first created. */
private Socket mSocket;
String you;
String opponentId;
String username;
{
try {
mSocket = IO.socket(Constants.CHAT_SERVER_URL);
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(new MYGIFView(getApplicationContext()));
//initialise the socket
mSocket.connect();
//call add user
mSocket.emit("add user");
//start a listener for opponent
mSocket.on("opponent", onOpponent);
//initialise the username
username = getIntent().getExtras().getString("username");
}
private Emitter.Listener onOpponent = new Emitter.Listener(){
@Override
public void call(final Object... args){
LoadingScreen.this.runOnUiThread(new Runnable() {
@Override
public void run() {
JSONObject data = (JSONObject) args[0];
try {
you = data.getString("you");
opponentId = data.getString("opponent");
Log.d("LoadingScreen", data.toString());
//setResult(RESULT_OK, i);
finish();
} catch (JSONException e) {
return;
}
Intent i = new Intent(LoadingScreen.this, MainActivity.class);
i.putExtra("opponentId", opponentId);
i.putExtra("you", you);
i.putExtra("username", username);
Log.d("goToChat", username);
startActivity(i);
}
});
}
};
@Override
public void onBackPressed(){
AlertDialog.Builder builder = new AlertDialog.Builder(LoadingScreen.this);
builder.setMessage("I knew you didn't have BALLS.").setCancelable(
false).setPositiveButton("I am a LOSER",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//send the logout information to the server
JSONObject discon = new JSONObject();
try {
discon.put("opponent", opponentId);
discon.put("you", you);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mSocket.emit("discon", discon);
mSocket.disconnect();
//finish the current activity.
Intent intent = new Intent(LoadingScreen.this, MainMenu.class);
startActivity(intent);
LoadingScreen.this.finish();
}
}).setNegativeButton("I'll fkin face it",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
}
});
AlertDialog alert = builder.create();
alert.show();
}
}
在上面的代码中，我通过将 MYGIFView.class 的实例传递给它来设置内容视图 -
这里是 MYGIFView.class
package com.myapp.mehul.login;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Movie;
import android.view.View;
import java.io.InputStream;
/**
* Created by mehul on 2/7/16.
*/
public class MYGIFView extends View{
Movie movie,movie1;
InputStream is=null,is1=null;
long moviestart;
public MYGIFView(Context context) {
super(context);
is=context.getResources().openRawResource(+ R.drawable.loading);
movie=Movie.decodeStream(is);
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.WHITE);
super.onDraw(canvas);
long now=android.os.SystemClock.uptimeMillis();
System.out.println("now="+now);
if (moviestart == 0) { // first time
moviestart = now;
}
System.out.println("\tmoviestart="+moviestart);
int relTime = (int)((now - moviestart) % movie.duration()) ;
System.out.println("time="+relTime+"\treltime="+movie.duration());
movie.setTime(relTime);
movie.draw(canvas,this.getWidth()/2-20,this.getHeight()/2-40);
this.invalidate();
}
}
加载活动正在创建 MYGIFView.class 的实例并记录数据，但随后会发出致命信号 11。我尝试搜索但没有得到任何答案。
控制台日志 -
02-07 12:22:30.321 29092-29092/? I/art: Late-enabling -Xcheck:jni
02-07 12:22:30.341 29092-29102/? I/art: Debugger is no longer active
02-07 12:22:30.422 29092-29092/? D/SQLiteHandler: Fetching user from Sqlite: {username=Harsh}
02-07 12:22:30.422 29092-29092/? D/LoginActivity: already logged in
02-07 12:22:30.425 29092-29092/? I/Timeline: Timeline: Activity_launch_request id:com.myapp.mehul.login time:71360781
02-07 12:22:30.487 29092-29092/? D/MainMenu: painted again
02-07 12:22:30.490 29092-29092/? D/SQLiteHandler: Fetching user from Sqlite: {username=Harsh}
02-07 12:22:30.554 29092-29149/? D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
02-07 12:22:30.559 29092-29092/? D/Atlas: Validating map...
02-07 12:22:30.596 29092-29149/? I/Adreno-EGL: <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LA.BF.1.1.1_RB1.05.01.00.042.030_msm8974_LA.BF.1.1.1_RB1__release_AU ()
OpenGL ES Shader Compiler Version: E031.25.03.06
Build Date: 04/15/15 Wed
Local Branch: mybranch9068252
Remote Branch: quic/LA.BF.1.1.1_rb1.19
Local Patches: NONE
Reconstruct Branch: AU_LINUX_ANDROID_LA.BF.1.1.1_RB1.05.01.00.042.030 + NOTHING
02-07 12:22:30.597 29092-29149/? I/OpenGLRenderer: Initialized EGL, version 1.4
02-07 12:22:30.611 29092-29149/? D/OpenGLRenderer: Enabling debug mode 0
02-07 12:22:30.660 29092-29092/? I/Timeline: Timeline: Activity_idle id: android.os.BinderProxy@387f1572 time:71361016
02-07 12:22:31.898 29092-29092/com.myapp.mehul.login D/go to chat: was called
02-07 12:22:31.899 29092-29092/com.myapp.mehul.login I/Timeline: Timeline: Activity_launch_request id:com.myapp.mehul.login time:71362255
02-07 12:22:31.997 29092-29092/com.myapp.mehul.login I/System.out: now=71362353
02-07 12:22:31.997 29092-29092/com.myapp.mehul.login I/System.out: moviestart=71362353
02-07 12:22:31.997 29092-29092/com.myapp.mehul.login I/System.out: time=0 reltime=1850
02-07 12:22:32.007 29092-29092/com.myapp.mehul.login A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 29092 (app.mehul.login)
02-07 12:22:32.541 29092-29092/com.myapp.mehul.login W/app.mehul.login: type=1701 audit(0.0:302): auid=4294967295 uid=10250 gid=10250 ses=4294967295 subj=u:r:untrusted_app:s0 reason="memory violation" sig=11
原文由 hashcode55 发布，翻译遵循 CC BY-SA 4.0 许可协议
java
android
我收到了这个问题的一批，这意味着它被浏览了很多，所以我会回答这个问题 -
我发现下面的行抛出错误 -
现在的问题是这个错误可能是由很多原因引起的，它从来都不是一个特定的原因..我的不工作的原因是因为我的设备不能很好地使用硬件加速，所以我只需要禁用它在清单应用程序中，就像这样 -
现在可能原因可能不一样……但核心原因是相同的，它与内存有关，而且最有可能是你正在测试的设备或模拟器的固件中的错误。