मैं यह सब के साथ खेला दिन, और आखिरकार अंतिम लक्ष्य हासिल किया - दो दृश्यों की रोटेशन एनीमेशन जैसी चिकनी कार्डफ्लिप!
मैं डेमो परियोजना डाल here
public class FlipAnimation extends Animation {
private Camera camera;
private View fromView;
private View toView;
private float centerX;
private float centerY;
private boolean forward = true;
/**
* Creates a 3D flip animation between two views.
*
* @param fromView
* First view in the transition.
* @param toView
* Second view in the transition.
*/
public FlipAnimation(View fromView, View toView) {
this.fromView = fromView;
this.toView = toView;
setDuration(1500);
setFillAfter(false);
// setInterpolator(new AccelerateDecelerateInterpolator());
setInterpolator(new LinearInterpolator());
}
public void reverse() {
if (forward) {
View switchView = toView;
toView = fromView;
fromView = switchView;
}
forward = false;
}
@Override
public void initialize(int width, int height, int parentWidth, int parentHeight) {
super.initialize(width, height, parentWidth, parentHeight);
centerX = width/2;
centerY = height/2;
camera = new Camera();
}
@Override
protected void applyTransformation(float interpolatedTime, Transformation t) {
// Angle around the y-axis of the rotation at the given time
// calculated both in radians and degrees.
final double radians = Math.PI * interpolatedTime;
float degrees = (float) (180.0 * radians/Math.PI);
//scale down the views a bit, so that they would look nice when the rotation begins
if (interpolatedTime <= 0.05f) {
fromView.setScaleX(1 - interpolatedTime);
fromView.setScaleY(1 - interpolatedTime);
toView.setScaleX(1 - interpolatedTime);
toView.setScaleY(1 - interpolatedTime);
}
// Once we reach the midpoint in the animation, we need to hide the
// source view and show the destination view. We also need to change
// the angle by 180 degrees so that the destination does not come in
//It is very important to call "toView.bringToFront()" and not play with the
// visibility of the views, because if you apply this animation more than once,
//the subsequent calls may fail
if (interpolatedTime >= 0.5f) {
degrees -= 180.f;
toView.bringToFront();
//these two lines force a layout redraw
((View)toView.getParent()).requestLayout();
((View)toView.getParent()).invalidate();
}
//scale the views back to their original size (Assuming original size was 1)
if (interpolatedTime >= 0.95f) {
fromView.setScaleX(interpolatedTime);
fromView.setScaleY(interpolatedTime);
toView.setScaleX(interpolatedTime);
toView.setScaleY(interpolatedTime);
}
if (forward)
degrees = -degrees; // determines direction of rotation when flip
// begins
final Matrix matrix = t.getMatrix();
camera.save();
camera.translate(0, 0, Math.abs(degrees) * 2);
camera.getMatrix(matrix);
camera.rotateY(degrees);
camera.getMatrix(matrix);
camera.restore();
matrix.preTranslate(-centerX, -centerY);
matrix.postTranslate(centerX, centerY);
}
}
और यह इस
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;
public class MainActivity extends FragmentActivity {
private boolean showingBack;
private FragmentLeft left = new FragmentLeft();
private FragmentRight right = new FragmentRight();
private Context context;
private Handler handler;
private FlipAnimation flipAnimation;
private FlipAnimation backFlip;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this;
handler = new Handler(getMainLooper());
getSupportFragmentManager().beginTransaction().add(R.id.fragment_container, right, "fragmentRight").commit();
getSupportFragmentManager().beginTransaction().add(R.id.fragment_container, left, "fragmentLeft").commit();
findViewById(R.id.flip).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
flipAnimation = new FlipAnimation(left.getView(), right.getView());
backFlip = new FlipAnimation(left.getView(), right.getView());
handler.removeCallbacks(rotate);
handler.postDelayed(rotate, 100);
}
});
}
private Runnable rotate = new Runnable() {
@Override
public void run() {
//put a variable showingBack, do not rely on view properties to flip
if (!showingBack) {
//very important to flip both views, so that when the
//left view goes to back and right view goes to front,
//the right view finishes the rotation
left.getView().startAnimation(flipAnimation);
right.getView().startAnimation(flipAnimation);
Toast.makeText(context, "flip", Toast.LENGTH_LONG).show();
showingBack = true;
} else {
showingBack = false;
backFlip.reverse();
Toast.makeText(context, "backflip", Toast.LENGTH_LONG).show();
//very important to flip both views, so that when the
//right view goes to back and right view goes to front,
//the left view finishes the rotation
left.getView().startAnimation(backFlip);
right.getView().startAnimation(backFlip);
}
}
};
}
इन की तरह फोन के टुकड़े कर रहे हैं
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentRight extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_right, container,false);
}
}
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentLeft extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_left, container,false);
}
}
और अंत में दृश्य ही
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:background="#ff151515"
tools:context="com.example.flipviewtest.MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_centerInParent="true" >
</FrameLayout>
<Button
android:id="@+id/flip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="flip" />
</RelativeLayout>
fragment_left.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#ffff0000"
>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff0ffff0"
android:layout_margin="20dp" />
</LinearLayout>
fragment_right.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff00ff00"
android:orientation="vertical" >
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
android:background="#ff0000ff" />
</LinearLayout>
टिप्पणी Flextra की और @FMMobileFelipeMenezes से लिया कोड के कुछ जवाब देती
आप कमाल कर रहे हैं! – David
बढ़िया! इस भयानक कोड के लिए आपको टैंक करें। केवल एक प्रश्न: मैं एक टुकड़े में कैसे घुमा सकता हूं जो वर्तमान गतिविधि में नहीं है? मैं फ्रैगमेंट से 'Fragment.getView()' के साथ दृश्य प्राप्त कर सकता हूं लेकिन फिर अगर मैं एनीमेशन शुरू करता हूं तो यह एक त्रुटि की बात आती है। – Cilenco
सिलेंको, खंड वर्ग को फिर से परिभाषित करने का प्रयास करें और इस कोड को अंदर रखें। या एक एक्शन श्रोता बनाएँ। वैसे भी मुझे यकीन है कि अगर वह मदद नहीं है। अभी तक टुकड़ों से निपटें नहीं। –