status-im
/
react-native-linear-gradient
mirror of https://github.com/status-im/react-native-linear-gradient.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #51 from salzhrani/patch-1 

update LinearGradientView
This commit is contained in:
Brent Vatne 2016-01-14 09:49:59 -08:00
parent 6c039833fa 872f504797
commit d6f85741f4
1 changed files with 31 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
android/src/main/java/com/BV/LinearGradient/LinearGradientView.java
View File

@ -14,12 +14,13 @@ import com.facebook.react.uimanager.CatalystStylesDiffMap;
public class LinearGradientView extends View {
public static Paint mPaint;
public static LinearGradient mShader;
public static float[] mLocations;
public static int[] mStartPos;
public static int[] mEndPos;
public static int[] mColors;
private Paint mPaint;
private LinearGradient mShader;
private float[] mLocations;
private float[] mStartPos;
private float[] mEndPos;
private int[] mColors;
private int[] mSize;
public LinearGradientView(Context context, CatalystStylesDiffMap props) {
super(context, null);
@ -52,45 +53,47 @@ public class LinearGradientView extends View {
try {
ReadableArray startPos = props.getArray("start");
assert startPos != null;
mStartPos = new int[]{startPos.getInt(0), startPos.getInt(1)};
mStartPos = new float[]{(float) startPos.getDouble(0), (float) startPos.getDouble(1)};
} catch (Exception e) {
mStartPos = new int[]{0,0};
mStartPos = new float[]{0,0};
}
try {
ReadableArray endPos = props.getArray("end");
assert endPos != null;
mEndPos= new int[]{endPos.getInt(0), endPos.getInt(1)};
mEndPos= new float[]{(float) endPos.getDouble(0), (float) endPos.getDouble(1)};
} catch (Exception e) {
//default to full height.
mEndPos = new int[]{0, getMeasuredHeight()};
mEndPos = new float[]{0, getMeasuredHeight()};
}
drawGradient(null, null, null, null);
mSize = new int[]{0, 0};
drawGradient();
}
public void updateStartPosition(ReadableArray startPos) {
int[] _startPos;
float[] _startPos;
try {
assert startPos != null;
_startPos= new int[]{startPos.getInt(0), startPos.getInt(1)};
_startPos= new float[]{(float) startPos.getDouble(0), (float) startPos.getDouble(1)};
} catch (Exception e) {
_startPos = new int[]{0,0};
_startPos = new float[]{0,0};
}
drawGradient(_startPos, null, null, null);
mStartPos = _startPos;
drawGradient();
}
public void updateEndPosition(ReadableArray endPos) {
int[] _endPos;
float[] _endPos;
try {
assert endPos != null;
_endPos= new int[]{endPos.getInt(0), endPos.getInt(1)};
_endPos= new float[]{(float) endPos.getDouble(0), (float) endPos.getDouble(1)};
} catch (Exception e) {
_endPos = new int[]{0,0};
_endPos = new float[]{0,0};
}
drawGradient(null,_endPos, null, null);
mEndPos = _endPos;
drawGradient();
}
@ -100,7 +103,8 @@ public class LinearGradientView extends View {
{
_colors[i] = colors.getInt(i);
}
drawGradient(null, null, _colors, null);
mColors = _colors;
drawGradient();
}
public void updateLocations(ReadableArray locations){
@ -115,23 +119,18 @@ public class LinearGradientView extends View {
} catch (Exception e) {
_locations = null;
}
drawGradient(null, null, null, _locations);
mLocations = _locations;
drawGradient();
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
//TODO: Ensure that we don't override a specified startPos / endPos
int[] _endPos = new int[]{mEndPos[0], h};
drawGradient(null, _endPos, null, null);
mSize = new int[]{w, h};
drawGradient();
}
private void drawGradient(int[] startPos, int[] endPos, int[] colors, float[] locations) {
mStartPos = startPos != null ? startPos : mStartPos;
mEndPos = endPos != null ? endPos : mEndPos;
mColors = colors != null ? colors : mColors;
mLocations = locations;
//locations can be null, thats just fine, so pass it as such.
mShader = new LinearGradient(mStartPos[0], mStartPos[1], mEndPos[0], mEndPos[1], mColors, locations, Shader.TileMode.MIRROR);
private void drawGradient() {
mShader = new LinearGradient(mStartPos[0] * mSize[0], mStartPos[1] * mSize[1], mEndPos[0] * mSize[0], mEndPos[1] * mSize[1], mColors, mLocations, Shader.TileMode.MIRROR);
mPaint.setShader(mShader);
invalidate();
}