我已经编写了一个代码，但它一直在崩溃，我不知道从这一点开始该做什么。这是我的代码：
public class MainActivity extends Activity {
int windowwidth;
int screenCenter;
int x_cord, y_cord, x, y;
int Likes = 0;
RelativeLayout parentView;
float alphaValue = 0;
private Context m_context;
@SuppressWarnings("deprecation")
@SuppressLint("NewApi")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.mainlayout);
m_context = MainActivity.this;
parentView = (RelativeLayout) findViewById(R.id.layoutview);
windowwidth = getWindowManager().getDefaultDisplay().getWidth();
screenCenter = windowwidth / 2;
int[] myImageList = new int[] { R.drawable.cats, R.drawable.baby1, R.drawable.sachin,
R.drawable.cats, R.drawable.puppy };
for (int i = 0; i < 5; i++) {
LayoutInflater inflate = (LayoutInflater) m_context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final View m_view = inflate.inflate(R.layout.custom_layout, null);
ImageView m_image = (ImageView) m_view.findViewById(R.id.sp_image);
LinearLayout m_topLayout = (LinearLayout) m_view.findViewById(R.id.sp_color);
LinearLayout m_bottomLayout = (LinearLayout) m_view.findViewById(R.id.sp_linh);
// final RelativeLayout myRelView = new RelativeLayout(this);
m_view.setLayoutParams(new LayoutParams((windowwidth - 80), 450));
m_view.setX(40);
m_view.setY(40);
m_view.setTag(i);
m_image.setBackgroundResource(myImageList[i]);
if (i == 0) {
m_view.setRotation(-1);
} else if (i == 1) {
m_view.setRotation(-5);
} else if (i == 2) {
m_view.setRotation(3);
} else if (i == 3) {
m_view.setRotation(7);
} else if (i == 4) {
m_view.setRotation(-2);
} else if (i == 5) {
m_view.setRotation(5);
}
// ADD dynamically like button on image.
final Button imageLike = new Button(m_context);
imageLike.setLayoutParams(new LayoutParams(100, 50));
imageLike.setBackgroundDrawable(getResources().getDrawable(R.drawable.like));
imageLike.setX(20);
imageLike.setY(-250);
imageLike.setAlpha(alphaValue);
m_topLayout.addView(imageLike);
// ADD dynamically dislike button on image.
final Button imagePass = new Button(m_context);
imagePass.setLayoutParams(new LayoutParams(100, 50));
imagePass.setBackgroundDrawable(getResources().getDrawable(R.drawable.dislike));
imagePass.setX(260);
imagePass.setY(-300);
imagePass.setAlpha(alphaValue);
m_topLayout.addView(imagePass);
// Click listener on the bottom layout to open the details of the
// image.
m_bottomLayout.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(m_context, DetailsActivity.class));
}
});
// Touch listener on the image layout to swipe image right or left.
m_topLayout.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
x_cord = (int) event.getRawX();
y_cord = (int) event.getRawY();
m_view.setX(x_cord - screenCenter + 40);
m_view.setY(y_cord - 150);
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
x = (int) event.getX();
y = (int) event.getY();
Log.v("On touch", x + " " + y);
break;
case MotionEvent.ACTION_MOVE:
x_cord = (int) event.getRawX(); // Updated for more
// smoother animation.
y_cord = (int) event.getRawY();
m_view.setX(x_cord - x);
m_view.setY(y_cord - y);
// m_view.setY(y_cord-y);
// y_cord = (int) event.getRawY();
// m_view.setX(x_cord - screenCenter + 40);
// m_view.setY(y_cord - 150);
if (x_cord >= screenCenter) {
m_view.setRotation((float) ((x_cord - screenCenter) * (Math.PI / 32)));
if (x_cord > (screenCenter + (screenCenter / 2))) {
imageLike.setAlpha(1);
if (x_cord > (windowwidth - (screenCenter / 4))) {
Likes = 2;
} else {
Likes = 0;
}
} else {
Likes = 0;
imageLike.setAlpha(0);
}
imagePass.setAlpha(0);
} else {
// rotate
m_view.setRotation((float) ((x_cord - screenCenter) * (Math.PI / 32)));
if (x_cord < (screenCenter / 2)) {
imagePass.setAlpha(1);
if (x_cord < screenCenter / 4) {
Likes = 1;
} else {
Likes = 0;
}
} else {
Likes = 0;
imagePass.setAlpha(0);
}
imageLike.setAlpha(0);
}
break;
case MotionEvent.ACTION_UP:
x_cord = (int) event.getRawX();
y_cord = (int) event.getRawY();
Log.e("X Point", "" + x_cord + " , Y " + y_cord);
imagePass.setAlpha(0);
imageLike.setAlpha(0);
if (Likes == 0) {
// Log.e("Event Status", "Nothing");
m_view.setX(40);
m_view.setY(40);
m_view.setRotation(0);
} else if (Likes == 1) {
// Log.e("Event Status", "Passed");
parentView.removeView(m_view);
} else if (Likes == 2) {
// Log.e("Event Status", "Liked");
parentView.removeView(m_view);
}
break;
default:
break;
}
return true;
}
});
parentView.addView(m_view);
}
}
}
这是我的LogCat
04-29 13:33:37.516: E/AndroidRuntime(8930): FATAL EXCEPTION: main
04-29 13:33:37.516: E/AndroidRuntime(8930): java.lang.NoSuchMethodError: android.view.View.setX
04-29 13:33:37.516: E/AndroidRuntime(8930): at com.example.tinderview_demo.MainActivity.onCreate(MainActivity.java:55)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1836)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1893)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.ActivityThread.access$1500(ActivityThread.java:135)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1054)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.os.Handler.dispatchMessage(Handler.java:99)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.os.Looper.loop(Looper.java:150)
04-29 13:33:37.516: E/AndroidRuntime(8930): at android.app.ActivityThread.main(ActivityThread.java:4389)
04-29 13:33:37.516: E/AndroidRuntime(8930): at java.lang.reflect.Method.invokeNative(Native Method)
04-29 13:33:37.516: E/AndroidRuntime(8930): at java.lang.reflect.Method.invoke(Method.java:507)
04-29 13:33:37.516: E/AndroidRuntime(8930): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
04-29 13:33:37.516: E/AndroidRuntime(8930): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
04-29 13:33:37.516: E/AndroidRuntime(8930): at dalvik.system.NativeStart.main(Native Method)
我希望有人为我找到解决方案。我会非常感激。
提前谢谢
答案 0 :(得分：4)
从pi级别11可以获得java.lang.NoSuchMethodError：android.view.View.setX
setX，您可能会将代码运行在较旧的设备上，或者运行在具有较旧sdk的模拟器上。你肯定应该查看ViewCompat类，它返回了一些这些方法的端口。例如。
ViewCompat.setX(m_view, 40)
并非所有版本的android都支持后端移植，但至少你要避开NoSuchMethodErrorException。另一种方法是明确检查SDK_INT
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES. HONEYCOMB) {
// run starting from honeycomb
}
答案 1 :(得分：1)
@SuppressLint("NewApi")
删除您应该看到的警告。 setX适用于API 11 +。
一种可能的解决方案是使用LayoutParams并设置边距：
LinearLayout.LayoutParams params = new LinearLayout
.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.leftMargin = 50; // X
params.topMargin = 60; // Y
m_view.setLayoutParams(params);